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Abstract tl.’l precarious, cu.tcl (i()”G/: ,:;,c ·,1.te c-:..._’1ci chronic regional ,.’3hortages are anticipated if the 11orld population continues to increase as predicted. More food rrotein will be needed from both conventional and nonconventional sources, particularly tile latter, because of the finite·limitations on land and enerGY• Many approaches toward incroasing the supply and nutritive value of foods and protein have been proposed including single cell protein (SCP). Protein production throughout mass cultivation of fungal mycelium is a relatively recent developm&,t, and using agricultural and industrial cellulosic wastes as subtrates for fungal groHth appeared to be a feasible approach, because of the high cellulase activity of some fungal species. In Egypt, corn cobs and date seeds constitute a major portion of cellulosic 11astes. Approximately 341 .000 tons of corn cobs (Technical population in Animal nutrition, No. 3, 1968, Ninistry of Agricultura, Cairo, Egypt) and 47520 tons of date seeds (Egyptian Ammal Book of Statistics 1974) are prodL.tced annually whicll a:c; ;nainly used as a fuel OJ:’ animal f’e:ed. In this study, t!1e JIOSibilities of production of SCP from corn cobs and datG so0ds were considered a;,· tivi-;S of this study arc: uuJ.urnarized as follows |